IBM Support
Security Bulletin: IBM DevOps Deploy / IBM UrbanCode Deploy (UCD) is affected by a Memory Allocation with Excessive Size Value Vulnerability in Apache ActiveMQ (CVE-2025-27533)
Security Bulletin
Summary
Apache ActiveMQ is used by IBM DevOps Deploy / IBM UrbanCode Deploy (UCD) as part of its legacy communication protocol and is affected by a Memory Allocation with Excessive Size Value Vulnerability. CVE-2025-27533.
Vulnerability Details
CVEID: CVE-2025-27533
DESCRIPTION: Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ.
During unmarshalling of OpenWire commands the size value of buffers was not properly validated which could lead to excessive memory allocation and be exploited to cause a denial of service (DoS) by depleting process memory, thereby affecting applications and services that rely on the availability of the ActiveMQ broker when not using mutual TLS connections.
This issue affects Apache ActiveMQ: from 6.0.0 before 6.1.6, from 5.18.0 before 5.18.7, from 5.17.0 before 5.17.7, before 5.16.8. ActiveMQ 5.19.0 is not affected.
Users are recommended to upgrade to version 6.1.6+, 5.19.0+, 5.18.7+, 5.17.7, or 5.16.8 or which fixes the issue.
Existing users may implement mutual TLS to mitigate the risk on affected brokers.
CWE: CWE-789: Memory Allocation with Excessive Size Value
CVSS Source: NVD
CVSS Base score: 7.5
CVSS Vector:(CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Affected Products and Versions
| Affected Product(s) | Version(s) |
|---|---|
| UCD - IBM UrbanCode Deploy | 7.1 - 7.1.2.25 |
Remediation/Fixes
IBM strongly suggests the following:
Upgrade affected versions to any of 7.1.2.26 or later
Workarounds and Mitigations
None
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References
Acknowledgement
Change History
02 Sep 2025: Initial Publication
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.